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Finding the Fourth Proportional to 483,388.72, 667,095.35 and 330,747.05

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Solution

The fourth proportional to 483,388.72, 667,095.35 and 330,747.05 is: 456,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,388.72 : 667,095.35 = 330,747.05 : x
  2. Step 2: Convert to fraction form
    483,388.72/667,095.35 = 330,747.05/x
  3. Step 3: Cross multiply
    483,388.72x = 667,095.35 × 330,747.05
  4. Step 4: Simplify right side
    483,388.72x = 220,639,819,095.22
  5. Step 5: Solve for x
    x = 220,639,819,095.22/483,388.72
  6. Step 6: Final answer
    x = 456,443.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.